Is the Angle Depiction in the Rainbow Diagram Accurate?

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    Figure Rainbow
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Homework Help Overview

The discussion revolves around the accuracy of a diagram depicting the angles and color order of a rainbow. Participants are examining the principles of light refraction and reflection as they relate to rainbow formation.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants are questioning the accuracy of angles depicted in the diagram and whether the color order is represented correctly. Some suggest tracing light rays to identify potential errors in the drawing.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the diagram. Some have offered guidance on how to analyze the drawing, while others are seeking clarification on specific angles and color arrangements.

Contextual Notes

There is mention of a teacher's diagram that may contain mistakes, and participants are encouraged to identify these errors. The discussion includes references to visual characteristics of rainbows, such as the reversal of color order in double rainbows.

whyonlyme
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Is rainbow figure correct ??

Homework Statement



It's a basic principle that why we see rainbow. I've described information in my attachment.
That figure is given by my teacher, he says to find out mistake in it.

My attempts

I think angles on horizontal lines are incorrect, will anyone explain how I tell it to my teacher ?
 

Attachments

  • Rainbow.jpg
    Rainbow.jpg
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whyonlyme said:

Homework Statement



It's a basic principle that why we see rainbow. I've described information in my attachment.
That figure is given by my teacher, he says to find out mistake in it.

My attempts

I think angles on horizontal lines are incorrect, will anyone explain how I tell it to my teacher ?

One thing - if you look up a picture of a rainbow - especially a double rainbow - you will notice that the order of colours is reversed in one compared to the other.

That feature is NOT shown in the diagram you included.
 


Try to trace the light rays - both the blue and the red ones- inside the water drop. You will see then what is wrong with your teacher's drawing.

ehild
 


What about angles ?? are they correct ??
 


PeterO said:
One thing - if you look up a picture of a rainbow - especially a double rainbow - you will notice that the order of colours is reversed in one compared to the other.

That feature is NOT shown in the diagram you included.
Yes it is.
 
See http://wiki.pingry.org/u/physics/index.php/Rainbows,_Reflection,_and_Refraction
Which angle is really larger in the drawing of your teacher?

ehild
 
Last edited:

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